Forming Systems

What Are Concrete Forming Systems?

Definition: Concrete forming systems are engineered, reusable formwork assemblies that contain and shape fresh concrete until it gains enough strength to support itself. They consist of prefabricated panels — typically steel, aluminum, or plywood-faced frames — held together with ties, clamps, walers, and bracing, and designed to resist the lateral pressure of wet concrete. Forming systems are used for walls, columns, slabs, beams, and building cores, and are reused across many pours on a project.

Traditional site-built formwork is cut and nailed from lumber and plywood for each pour, then stripped and often discarded. Engineered forming systems replace that with modular components that assemble quickly with standardized hardware, deliver consistent dimensions and finishes, and can be cycled repeatedly. That reduces labor, waste, and schedule time — particularly on projects with repetitive walls, columns, or floor plates.

Forming systems are closely tied to shoring. Wall and column forms resist lateral concrete pressure, while slab and deck forms must be supported from below by shoring frames, post shores, or modular shoring towers until the concrete can carry its own weight. Major manufacturers include PERI, Doka, EFCO, Symons by Dayton Superior, MEVA, and ULMA. Through Scaffold Exchange, you can find vendors across the U.S. who rent and sell concrete forming systems and compare their inventory, rental rates, and availability in your area.

Key Types of Concrete Forming Systems

Forming systems are grouped by the element they form and how they are handled on site. Most projects use more than one type.

Walls

Hand-Set Wall Forms

Lightweight aluminum or steel-frame panels that workers can set by hand, connected with wedge bolts or clamps. Ideal for foundations, basements, and smaller walls.

Walls

Crane-Set Gang Forms

Large panels ganged together with walers and strongbacks and moved by crane as a single unit. Best for tall, long, or highly repetitive walls.

Columns

Column Forms

Adjustable steel or aluminum forms for rectangular columns, plus round steel or single-use fiber tube forms for circular columns.

Slabs

Slab & Deck Forms

Panel deck systems, drop-head systems, and flying tables that form elevated slabs. Supported from below by shores or shoring towers until the slab reaches strength.

High-Rise

Climbing Forms

Jump forms and self-climbing systems that raise wall and core formwork floor by floor with integrated work platforms. Used for elevator cores, shear walls, and towers.

Common Applications & Job Site Uses

Concrete forming systems are used across residential, commercial, industrial, and infrastructure construction throughout the United States — anywhere cast-in-place concrete is poured.

Foundation walls, basements, and retaining walls

Elevated slabs and floor plates in multi-story buildings

Elevator cores, stair cores, and shear walls

Rectangular and round structural columns

Bridge piers, abutments, and pier caps

Water and wastewater treatment tanks

Parking structures with repetitive floor cycles

Architectural concrete requiring consistent finishes

How Forming Systems Relate to Shoring Equipment

Forming systems shape the concrete, while shoring supports it. Here is how forming compares to the shoring systems it works alongside, and which jobs each suits best.

10K Shoring Frame Equipment

Heavy-duty steel shoring frames

Welded frames stacked into shoring towers
High vertical load capacity per leg
Supports slab and beam forms from below
Best for heavy slabs and high shoring heights

Post Shores / Props

Adjustable single-post shores

Telescoping steel or aluminum posts
Fast to set and adjust individually
Supports deck forms and reshoring
Best for typical floor heights and light loads

Forming Systems ← You are here

Engineered reusable formwork

Shapes walls, columns, slabs, and cores
Resists lateral pressure of fresh concrete
Reused across many pours
Best for repetitive cast-in-place concrete

Modular Shoring Systems

Configurable shoring towers

Modular posts and ledgers built into towers
Adapts to varying heights and layouts
Supports slab and deck formwork
Best for complex or tall slab shoring

Suspended Concrete Slab Shoring

Support for elevated slabs

Carries slab formwork and fresh concrete
Remains until the slab reaches strength
Often followed by reshoring
Best for multi-story elevated slab pours

OSHA Compliance & Safety Standards

Concrete formwork on U.S. job sites is governed by OSHA 29 CFR 1926 Subpart Q, Concrete and Masonry Construction. Standard 29 CFR 1926.703 requires formwork to be designed, fabricated, erected, supported, braced, and maintained so that it can support, without failure, all vertical and lateral loads reasonably anticipated during placement of concrete. Industry guidance for formwork design is provided by ACI 347, Guide to Formwork for Concrete.

Formwork designed for all anticipated vertical and lateral loads
Drawings or plans for formwork and shoring available at the jobsite
Forms and shoring inspected before, during, and after concrete placement
Forms not removed until the concrete has gained sufficient strength
Protruding reinforcing steel guarded to prevent impalement
Fall protection for workers on the face of formwork

OSHA Standard 29 CFR
1926.703

Requirements for Cast-in-Place Concrete — U.S. Construction Regulations

OSHA Interpretations & Rulings →

Frequently Asked Questions

A concrete forming system is an engineered, reusable formwork assembly that holds fresh concrete in shape until it hardens. It uses prefabricated panels connected with ties, clamps, and walers, and is designed to resist the pressure of wet concrete. Forming systems are used for walls, columns, slabs, and cores and are reused across many pours.

Formwork is the mold that gives concrete its shape — the panels, ties, and hardware that contain it. Shoring is the temporary support structure that holds formwork and fresh concrete up from below, mainly for elevated slabs and beams. Wall and column forms resist sideways pressure, while slab forms rely on shoring to carry vertical loads.

Hand-set forms are lightweight panels workers can place without a crane, making them well suited to foundations, basements, and smaller walls. Crane-set gang forms are larger assemblies moved as a single unit, which is faster on tall, long, or repetitive walls where a crane is already on site. Many projects use both.

Use the Scaffold Exchange vendor map to search by your location and filter by equipment type. You can see which local companies rent and sell concrete forming systems, compare their inventory and pricing, and contact them directly through the platform.

Concrete formwork falls under OSHA 29 CFR 1926 Subpart Q, with specific requirements in 29 CFR 1926.703 for cast-in-place concrete. It requires formwork to support all anticipated loads, drawings to be available on site, shoring to be inspected, and forms to stay in place until the concrete has sufficient strength. Visit the OSHA website for full interpretations and rulings on this standard.

Forms and shores may not be removed until the concrete has gained enough strength to support its own weight and any superimposed loads. That determination should be based on the project's specifications or on concrete strength testing, as directed by the engineer of record — not on a fixed number of days alone.